77068149 has 8 divisors (see below), whose sum is σ = 103817280. Its totient is φ = 50848896.

The previous prime is 77068127. The next prime is 77068163. The reversal of 77068149 is 94186077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77068149 - 2⁹ = 77067637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77068149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77068049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132129 + ... + 132710.

It is an arithmetic number, because the mean of its divisors is an integer number (12977160).

Almost surely, 2^77068149 is an apocalyptic number.

It is an amenable number.

77068149 is a deficient number, since it is larger than the sum of its proper divisors (26749131).

77068149 is a wasteful number, since it uses less digits than its factorization.

77068149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264939.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 77068149 is about 8778.8466782374. The cubic root of 77068149 is about 425.5575593344.

The spelling of 77068149 in words is "seventy-seven million, sixty-eight thousand, one hundred forty-nine".